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Clock signal generator

  • US 5,684,418 A
  • Filed: 12/22/1995
  • Issued: 11/04/1997
  • Est. Priority Date: 12/26/1994
  • Status: Expired due to Fees
First Claim
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1. A clock signal generator, comprising:

  • a clock generator having at least a first multiplier, which has a first variable multiplying factor, for multiplying an input reference clock signal by the first variable multiplying factor to generate a first clock signal of a first frequency and a second multiplier, which has a second variable multiplying factor, for multiplying the input reference clock signal by the second variable multiplying factor to generate a second clock signal of a second frequency;

    a clock selector for receiving a status signal specifying a desired clock frequency for a functional block, for supplying the functional block with the first clock signal when the desired frequency equals the first frequency, and for supplying the functional block with the second clock signal when the desired frequency equals the second frequency, and for supplying the clock generator with an operation control signal, said operation control signal for stopping the first multiplier when the desired frequency is the second frequency and for stopping the second multiplier when the desired frequency is the first frequency.

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